Wear particles, surfaces and plastic flow generation in unimplanted and Mo ion implanted carbon steel under friction

E. V. Legostaeva, Yu P. Sharkeev

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The purpose of the present work is to study the influence of the structure modified by ion implantation on mechanisms for wear particles, surfaces and plastic flow generation. The 'block-on-shaft' testing procedure was used to investigate the wear behavior of the ferritic/pearlitic carbon steel (in 0.45 wt% C) in the unimplanted and Mo ion implanted states. New approach to description of plastic deformation and destruction under friction is introduced on the basis of concepts of structural levels of plastic deformation and physical mesomechanics. In order to investigate the plastic flow behavior under friction, a unique method was applied using the optical TV-complex 'TOMSC'. Reconstruction step-by-step of the displacement vector fields helps to reveal different plastic deformation stages evolving from fragmented mesostructure to large vortex mesostructure. It has been found that the character of plastic flow in the subsurface layers during friction determines the mechanism for generation and separation of the wear particles and formation of the wear surfaces. It was concluded that the formation of the modified structural-phase state in the surface layer of the Mo ion implanted specimens prevents the fragmented structure formation at mesolevel and retards the mesofragment vortex movement in the subsurface layer, thereby decreasing the intensity of the wear particles generation and finally increasing wear resistance.

Original languageEnglish
Pages (from-to)417-425
Number of pages9
JournalTribology International
Volume39
Issue number5
DOIs
Publication statusPublished - May 2006

Fingerprint

plastic flow
carbon steels
Plastic flow
Carbon steel
friction
Wear of materials
Ions
Friction
plastic deformation
Plastic deformation
ions
Vortex flow
vortices
wear resistance
Ion implantation
destruction
Wear resistance
ion implantation
surface layers
Testing

Keywords

  • Deformation scale levels
  • Ion implantation
  • Microstructure
  • Plastic flow
  • Wear particles

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Engineering(all)
  • Mechanical Engineering
  • Surfaces, Coatings and Films

Cite this

Wear particles, surfaces and plastic flow generation in unimplanted and Mo ion implanted carbon steel under friction. / Legostaeva, E. V.; Sharkeev, Yu P.

In: Tribology International, Vol. 39, No. 5, 05.2006, p. 417-425.

Research output: Contribution to journalArticle

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